Separator



Oct 3 1944- w. R. FREEMAN ETAL 2,351,394

, SEPARATOR Filed Nov. 26, 1941 INVENTORS WRFREEMAN C. I'FE S ATTORNEY Patented Oct. 31, 19 44 UNITED} STATES PATENT [OF E t V 1 SEPARATOR- I lWalter R. Freeman, Clayton, and Cyril B. Fites, I

St. Johns, Mo., assignors to Wagner Electric Corporation, St. Louis, Mo., a corporation of 1 Delaware Application November 26, 1941, Serial No. 420.498

7 I 1 Claim. Our invention relates to separators for ex tracting liquid, such as oil, from air or other gas.

One of the'objects of our invention is to proback to the reservoir or other chamber which is provided to receive the oil. The conduit l3, when the separator is associated with a compressor, has a valve (not shown) so that the oil can only be drained back to the reservoir duce an improved separator of the type having when desiredaplurality of bafiies whichis so constructed that Fitted within the annular portion 8 of the the parts of the separator can be quickly asbottom member is one end of a tube l4 which sembled with a minimum of operations. extends up into the housing member 2 to a Another object of our-invention is to produce point adjacent its top wall 3. The upper end a separator in which substantially all the parts 10 of this tube has turned out portions I5 providcan be made from stamped and drawn metal and ing openings v I6. Resting on the top end of assembledwithout 'the necessity of welding or tube l4 isan inverted cup-shaped member I! otherwise rigidly securing the parts together. which has it cylindrical side wall iii in conf Other objects of our invention will become apcentric spaced relation to the tube l4. Assoparent from the following description taken in ciated with the side walls of the inverted cupconnection with the accompanying drawing in shaped member and with the tube are alterwhich Figure l is a partial sectional viewshownately arranged baffles 19 and 20. A bafile l9. in the separator in assembled condition; Figis shown in detail in Figures 2 and 4 and a ures 2 and 3 are views of the different bafile baffle 20 is shOWn'in detail in Figures 3 and 5. constructions; Figure'4 is a sectional view taken 20 Both bafiles are in the general form of annular on the line 44 of Figure 2; and Figure 5 is a discs and can be stamped from a flatsheet of sectional view taken on the line 5-5 of Figure 3. metal.

The separator shown is particularly adapted Each bafiie l9 has a central circular opening 2iforuse in separating oil carried by the discharged of a diameter substantially the same as the excompressed air of a compressor but it is to be ternal diameter of the tube M. The periphery understood that it may be used for extracting of the baffle is providedwith a plurality of cirother. liquids in the form of vapor or small parcumferentially spaced apartears 22. These ears. ticles which may be carried by any gas. are bent from the body of the baffieso as to ex- In the drawing the numeral 1 indicates the I tend at i t a es 130 the plane of said body bottom member of the separator ,and attached and are arranged so that they project alternately thereto is a cylindrical housing member 2 hayin opposite directions. The baffie is so cut that ing an integral top 3. Secured to this top is a the edges 23 of the bafiie between the ears are fitting l forming the outlet of the separator.- A spaced inwardly of the outer edges 'of the ears check valve 5 is associated with this fitting memso as to provide passages 24 between the'baffle ber to prevent the return of compressed air to and the wall l8 of the cup-shaped member I! the separator and a conduit 6 conducts the comwhen the baflie is in position, thus allowing fluid pressed air to a tank or other receptacle. to pass around the bafiie.

The bottom member of the separator carries The baflle 2D is formed with a circular outer an annular sealing cup 1 for sealing the cylinedge 25; the diameter of which is substantially drical housing and the bottom member at the 40 the same as the inner diameter of the cylindripoint where they are joined together. The cencal wall of the inverted cup-shaped member l1.

. tral portion of the bottom member has an an- The central portion of the baffle is provided with nular portion 8 which projects inwardly theren openi g 6 for receivin the tube and the infrom and forms an annular recess 9 in the botner edge of said baflie at the opening provided tom member for the separated 1iquid.- An inlet with spaced ears 2! bent so as to project alpassage ID in the bottom member is connected ternately from opposite sides of the baffie and to a conduit H which conveys fluid to the sepaatright angles to the plane of the body of the rator. When the separator is to be used with bafiie. The inner surfaces of these ears lie on an air compressor. this conduit II will be conr a circle which has a diameter substantially the nected to communicate with the discharge outsame as the outer diameter of tube l4. The inlet of said compressor. The bottom member also ner edges 28' of the baflie between the ears is has a passage 12 which places the annular recess s aced backward of the ears so as to provide 9 in communication with the conduit l3 for con- Openings 9 W n t e b fi e is in p t onducting the oil which accumulates in the recess When the bafiles are stacked alternately in the manner shown in Figure 1, they will be held in tionsl on the top end of the tube.

To assemble the cup-shapedmember, the tube, and the baflles, all that need be done is'to setthe" cup-shaped member open side up, place the tube in the center thereof with the end; having the opening 16 in engagement with the bottom of the cup-shaped member and thenalternately stack;

the baflies 19 and on the tube and in the cup,- shaped member. Due to the construction of thebaiiies,-.they-. will be properly spaced apart by the ears extendingtherefrom. After the bafiies have been stacked, the. end of wall i8 is turned in to form the flange 30, therebyholding the entire assembly together. The tube 14 is next inserted into the annular projection 8.

Withthe. separator constructed. and assembled I as shown in Figure 1,. fluidl'will. pass from the inlet conduit H up-through tube l4, through the openings 16 ,1 and then alternately back and forth between the bafllesj If'the' fluid passing through the separator, is from anair compressor, it will carry with it a. certain amount of oil inthe form ofmist or particles-and as the. compressed air passes back and forth between the baflies, the Q oil will collect on thelbaffies and thus be separatedfrom the compressed air. The collected oil 'will' run off the baflies through the openings at the ends thereof and eventually run into the ane nul'arrecessB in the bottommember. The com- 249 pressedair which" hasbeen freed of oil passes out through'the check valve 5 to the conduit 5 and the storage tank. The accumulatedv oil in recess v9 is returned to the reservoir of the com- 2,ec1,3e4 i f i, I

v has nothing to do with the separator construcp 9 of tube 14 by th top bafile is engaging the por- V p be limited except asset forth by the appended tion. If desired, a screen 3| can be provided above recess 9 to strain the oil when it drips from the bafile plates into the recess. There may also be provided a disc valve 32 for the inlet passage ll] of the separator which will prevent the compressed fluid from flowing back from the separator to the compressor when the compressor is unloaded. The valve 'also'will maintain air under pressure in the housing 2 which is useful in forcing accumulated oil back to the compressor reservoir whenever the oil is permitte 't'oflow back through the conduit l3.

Being aware of the possibility of modifications in the particular structure herein described without departing from the fundamental principles of our invention, we do not intend that its scope claim.

Having fully described our invention, what we claim as new and desire to secure by'LettersPatent of the United States is: I

In a separator, a housing having an inlet and anoutlet, a tube communicating with the inlet and extending intosaidtcasing, said tube having its inner end provided with turned out portions formingopenings in the wall of the tube, a cupshaped member positioned over the end of the tube withv its side wall concentrically spaced from the tube, and a plurality of baiiles in the f0rm.of annular discs positioned in, the space between the tube and the wall. of the cup-shaped member andlying in planes. at substantially right angles to the tube and wall, the discs formingone series of alternate baflies having. ears extending from opposite-sides at its outer edge and the discs forming the other series of alternate. baflieshaving ears extending from opposite sides of. its inner edge whereby to maintain said discsv in spaced relation,,each disc also .be'ingsoformed between its ears as to provideopenings permittingfluidto pressor or any other receptacle through the con- 45 duit I3; When the separator is used with a compressor it-is, of course, desirable to return this accumulated'oil'only when the compressor is not compressing air. able valve means which need not be shown as it This "is accomplished by suitpass the baliies at said. cared edge, and the end of the wall 'of. the cup-shapedmemberv being provided with an inturnedflange for maintaining said bafiles between theturned out portions at the end of the tube and the said-flangeand preventing removal of the cup-shaped member.

WALTER R. FREEMAN; CYRIL B. FITES. 

